Add CHANGELOG.md

CHANGELOG.md

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+## v1.2.1 → v2.0.0-RC1
+  * Refactored for huge performance improvements (~40% roundtrip time).
+  * New header format for better error messages.
+  * New `taoensso.nippy.tools` ns for easier integration with 3rd-party tools.
+
+  * **DEPRECATED**: `freeze-to-bytes` -> `freeze`, `thaw-from-bytes` -> `thaw`.
+    See the new fn docstrings for updated opts, etc.
+
+  * Added pluggable compression support:
+    ```clojure
+    (freeze "Hello") ; defaults to:
+    (freeze "Hello" {:compressor taoensso.nippy.compression/snappy-compressor})
+
+    ;; The :compressor value above can be replaced with nil (no compressor) or
+    ;; an alternative Compressor implementing the appropriate protocol
+    ```
+
+  * Added pluggable crypto support:
+    ```clojure
+    (freeze "Hello") ; defaults to:
+    (freeze "Hello" {:encryptor taoensso.nippy.encryption/aes128-encryptor}
+
+    ;; The :encryptor value above can be replaced with nil (no encryptor) or
+    ;; an alternative Encryptor implementing the appropriate protocol
+    ```
+
+    See the [README](https://github.com/ptaoussanis/nippy#encryption-currently-in-alpha) for an example using encryption.
+
+
+## For older versions please see the [commit history][]
+
+[commit history]: https://github.com/ptaoussanis/nippy/commits/master
+[API docs]: http://ptaoussanis.github.io/nippy
+[Taoensso libs]: https://www.taoensso.com/clojure-libraries
+[Nippy GitHub]: https://github.com/ptaoussanis/nippy
+[Nippy CHANGELOG]: https://github.com/ptaoussanis/carmine/blob/master/CHANGELOG.md
+[Nippy API docs]: http://ptaoussanis.github.io/nippy

README.md

@@ -1,4 +1,4 @@
-**[API docs](http://ptaoussanis.github.io/nippy/)** | [contact & contributing](#contact--contributing) | [other Clojure libs](https://www.taoensso.com/clojure-libraries) | [Twitter](https://twitter.com/#!/ptaoussanis) | current [semantic](http://semver.org/) version:
+**[API docs](http://ptaoussanis.github.io/nippy/)** | **[CHANGELOG](https://github.com/ptaoussanis/nippy/blob/master/CHANGELOG.md)** | [contact & contributing](#contact--contributing) | [other Clojure libs](https://www.taoensso.com/clojure-libraries) | [Twitter](https://twitter.com/#!/ptaoussanis) | current [semantic](http://semver.org/) version:
 
 ```clojure
 [com.taoensso/nippy "1.2.1"]     ; Stable